 /*
 * TipTip
 * Copyright 2010 Drew Wilson
 * www.drewwilson.com
 * code.drewwilson.com/entry/tiptip-jquery-plugin
 *
 * Version 1.3   -   Updated: Mar. 23, 2010
 *
 * This Plug-In will create a custom tooltip to replace the default
 * browser tooltip. It is extremely lightweight and very smart in
 * that it detects the edges of the browser window and will make sure
 * the tooltip stays within the current window size. As a result the
 * tooltip will adjust itself to be displayed above, below, to the left 
 * or to the right depending on what is necessary to stay within the
 * browser window. It is completely customizable as well via CSS.
 *
 * This TipTip jQuery plug-in is dual licensed under the MIT and GPL licenses:
 *   http://www.opensource.org/licenses/mit-license.php
 *   http://www.gnu.org/licenses/gpl.html
 */

(function($){
	$.fn.tipTip = function(options) {
		var defaults = { 
			maxWidth: "200px",
			edgeOffset: 3,
			defaultPosition: "bottom",
			fadeIn: 200,
			fadeOut: 200,
			delay: 400,
			attribute: "title",
		  	enter: function(){},
		  	exit: function(){}
	  	};
	 	var opts = $.extend(defaults, options);
	 	
	 	// Setup tip tip elements and render them to the DOM
	 	if($("#tiptip_holder").length <= 0){
	 		var tiptip_holder = $('<div id="tiptip_holder" style="max-width:'+ opts.maxWidth +';"></div>');
			var tiptip_content = $('<div id="tiptip_content"></div>');
			var tiptip_arrow = $('<div id="tiptip_arrow"></div>');
			$("body").append(tiptip_holder.html(tiptip_content).prepend(tiptip_arrow.html('<div id="tiptip_arrow_inner"></div>')));
		} else {
			var tiptip_holder = $("#tiptip_holder");
			var tiptip_content = $("#tiptip_content");
			var tiptip_arrow = $("#tiptip_arrow");
		}
	 	
	 	this.live('mouseenter', function(){

	 		var self = this;
	 		var org_elem = $(self);
	 		var org_title = org_elem.attr(opts.attribute);

			if(org_title == "") return false;

			org_elem.attr(opts.attribute, ""); //clear original Attribute. do not remove attrubute, because IE will show it any way
			org_elem.data('title', org_title);	 		
	 		
	 		var timeout = window.setTimeout(function(){

				opts.enter.call(self);
				tiptip_content.html(org_title);
				tiptip_holder.hide().removeAttr("class").css("margin","0");
				tiptip_arrow.removeAttr("style");
				
				var top = parseInt(org_elem.offset()['top']);
				var left = parseInt(org_elem.offset()['left']);
				var org_width = parseInt(org_elem.outerWidth());
				var org_height = parseInt(org_elem.outerHeight());
				var tip_w = tiptip_holder.outerWidth();
				var tip_h = tiptip_holder.outerHeight();
				var w_compare = Math.round((org_width - tip_w) / 2);
				var h_compare = Math.round((org_height - tip_h) / 2);
				var marg_left = Math.round(left + w_compare);
				var marg_top = Math.round(top + org_height + opts.edgeOffset);
				var t_class = "";
				var arrow_top = "";
				var arrow_left = Math.round(tip_w - 12) / 2;

	            if(opts.defaultPosition == "bottom"){
	            	t_class = "_bottom";
	           	} else if(opts.defaultPosition == "top"){ 
	           		t_class = "_top";
	           	} else if(opts.defaultPosition == "left"){
	           		t_class = "_left";
	           	} else if(opts.defaultPosition == "right"){
	           		t_class = "_right";
	           	}
				
				var right_compare = (w_compare + left) < parseInt($(window).scrollLeft());
				var left_compare = (tip_w + left) > parseInt($(window).width());
				
				if((right_compare && w_compare < 0) || (t_class == "_right" && !left_compare) || (t_class == "_left" && left < (tip_w + opts.edgeOffset + 5))){
					t_class = "_right";
					arrow_top = Math.round(tip_h - 13) / 2;
					arrow_left = -12;
					marg_left = Math.round(left + org_width + opts.edgeOffset);
					marg_top = Math.round(top + h_compare);
				} else if((left_compare && w_compare < 0) || (t_class == "_left" && !right_compare)){
					t_class = "_left";
					arrow_top = Math.round(tip_h - 13) / 2;
					arrow_left =  Math.round(tip_w);
					marg_left = Math.round(left - (tip_w + opts.edgeOffset + 5));
					marg_top = Math.round(top + h_compare);
				}

				var top_compare = (top + org_height + opts.edgeOffset + tip_h + 8) > parseInt($(window).height() + $(window).scrollTop());
				var bottom_compare = ((top + org_height) - (opts.edgeOffset + tip_h + 8)) < 0;
				
				if(top_compare || (t_class == "_bottom" && top_compare) || (t_class == "_top" && !bottom_compare)){
					if(t_class == "_top" || t_class == "_bottom"){
						t_class = "_top";
					} else {
						t_class = t_class+"_top";
					}
					arrow_top = tip_h;
					marg_top = Math.round(top - (tip_h + 5 + opts.edgeOffset));
				} else if(bottom_compare | (t_class == "_top" && bottom_compare) || (t_class == "_bottom" && !top_compare)){
					if(t_class == "_top" || t_class == "_bottom"){
						t_class = "_bottom";
					} else {
						t_class = t_class+"_bottom";
					}
					arrow_top = -12;						
					marg_top = Math.round(top + org_height + opts.edgeOffset);
				}
			
				if(t_class == "_right_top" || t_class == "_left_top"){
					marg_top = marg_top + 5;
				} else if(t_class == "_right_bottom" || t_class == "_left_bottom"){		
					marg_top = marg_top - 5;
				}
				if(t_class == "_left_top" || t_class == "_left_bottom"){	
					marg_left = marg_left + 5;
				}
				tiptip_arrow.css({"margin-left": arrow_left+"px", "margin-top": arrow_top+"px"});
				tiptip_holder.css({"margin-left": marg_left+"px", "margin-top": marg_top+"px"}).attr("class","tip"+t_class);

				tiptip_holder.stop(true,true).fadeIn(opts.fadeIn);	 			
	 		}, 400);
	 		
	 		$(self).data('timeout', timeout);
	 		return false;
			
	 	}).live('mouseleave', function(){
	 		var org_elem = $(this);
	 		
	 		clearTimeout(org_elem.data('timeout'));
	 		
			opts.exit.call(this);
			tiptip_holder.stop(true,true).fadeOut(opts.fadeOut);
			
			org_elem.attr(opts.attribute, org_elem.data('title'));
			org_elem.removeData('title');
	 	});
	}
})(jQuery);  	